Website deployed from calcite-avatica@6de8d796b4c388f7c2019fff2c883b8b7909c97e
diff --git a/avatica/docs/history.html b/avatica/docs/history.html
index 92ceda5..fd27c0d 100644
--- a/avatica/docs/history.html
+++ b/avatica/docs/history.html
@@ -706,25 +706,6 @@
Downloads are available on the
<a href="/avatica/downloads/avatica.html">downloads page</a>.</p>
-<h2 id="v1-21-0"><a href="https://github.com/apache/calcite-avatica/releases/tag/rel/avatica-1.21.0">1.21.0</a> / TODO</h2>
-
-<p>Apache Calcite Avatica 1.21.0 is under development.</p>
-
-<p>Compatibility: This release is tested
-on Linux, macOS, Microsoft Windows;
-using Oracle JDK 8, 9, 10, 11, 12, 13, 14, 15, 16, 17;
-using IBM Java 8;
-Guava versions 14.0.1 to 31.0.1-jre;
-other software versions as specified in <code class="language-plaintext highlighter-rouge">gradle.properties</code>.</p>
-
-<p>Contributors to this release:</p>
-
-<p>Features and bug fixes</p>
-
-<p>Build and tests</p>
-
-<p>Web site and documentation</p>
-
<h2 id="v1-20-0"><a href="https://github.com/apache/calcite-avatica/releases/tag/rel/avatica-1.20.0">1.20.0</a> / 2021-12-13</h2>
<p>Apache Calcite Avatica 1.20.0
